31282000

素因数分解:

$2^4\times 5^3\times {\mathrm{15641}}^1$

素因数の和:15664

約数の個数: 40

約数和(自身を含む): 75644712

約数和(自身を除く): 44362712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 15641, 31282, 62564, 78205, 125128, 156410, 250256, 312820, 391025, 625640, 782050, 1251280, 1564100, 1955125, 3128200, 3910250, 6256400, 7820500, 15641000, 31282000]

約数ペア:

[(1, 31282000), (2, 15641000), (4, 7820500), (5, 6256400), (8, 3910250), (10, 3128200), (16, 1955125), (20, 1564100), (25, 1251280), (40, 782050), (50, 625640), (80, 391025), (100, 312820), (125, 250256), (200, 156410), (250, 125128), (400, 78205), (500, 62564), (1000, 31282), (2000, 15641)]